baber/WOPTO huggingface dataset:
Patent JP-2002299881-A (JP)
Title: Electromagnetic wave shielding material and manufacturing method therefor
Inventor: YOKOYAMA SHIGEYUKI
IPC: G02B1/16
Filed: 2001-03-29
Abstract: PROBLEM TO BE SOLVED: To provide an electromagnetic wave shielding material which has superior light transmissivity and electromagnetic wave shielding property, in which the visibility of the view face of a display can be improved, the reflection of light emitted from the display is prevented at the back of a metallic mesh and the visibility of the display is improved much more. SOLUTION: A metallic foil mesh single body where the mesh pattern of a geometrical pattern is formed is manufactured by using a photoresist method. A blackening processing is performed on both sides of the metallic foil mesh single body. A metallic foil mesh whose both faces are blackened is applied to the electromagnetic wave shielding material.
Patent JP-2002293562-A (JP)
Title: Method for producing optical fiber
Inventor: HASEGAWA TAKEMI
IPC: C03B37/027
Filed: 2001-03-29
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an optical fiber realizing a microstructure, having desirable occupancy rate of sub-medium, reducing transmittance loss of the fiber and reducing a manufacturing cost. SOLUTION: This method for producing an optical fiber conducting light of a prescribed wave length in the axial direction through the total reflection or Bragg reflection comprises a main medium and a sub-medium. A plurality of regions comprising the sub-medium are arranged in a region comprising the main medium, wherein respective region extends in the axial direction. This method comprises the steps of a perform producing step (step S1) to produce a perform for the optical fiber, a void forming step (step S2) extending in the axial direction in the perform using a drilling tool provided with a rod- like main body, a cutting edge provided at a distal end of the main body, grooves spirally provide on the periphery of the main body and a drawing step (step S4) to draw the perform in which void is formed.
Patent JP-2002300779-A (JP)
Title: Switching power supply device
Inventor: KITANO SABURO
IPC: H02M3/335
Filed: 2001-03-29
Abstract: PROBLEM TO BE SOLVED: To provide with a simple structure reduction of power consumption in standby in a switching power supply device, which stabilizes the output voltage at a desired voltage by controlling switching of a main switching element Q switching DC voltage inputted according to output voltage information fed back from the secondary side by a control circuit 26. SOLUTION: Fluctuation of control only in a light-loaded condition is detected from non-linear output characteristic of a fluctuation detection circuit 31, and fluctuating components of the output is extracted by a differential circuit comprising a capacitor C10, potential dividing resistors R1 and R2 and fed back upon superposing the divided voltage of the output. Thus, in the control circuit 26, the light-loaded condition is discriminated by superposing the fluctuating components of control fluctuation of a relatively small fluctuation period (of alternating current) on an output voltage information of relatively large fluctuation period (of direct current). Therefore reduction of power consumption in standby in the switching power supply device can be achieved with simple structure, with no reed of inputting a signal representing loading of the load from an external apparatus.
Patent JP-2002293899-A (JP)
Title: Aliphatic copolyester-based flowability enhancer, method for producing the same and resin composition
Inventor: NAKADA KOJI
IPC: C08L101/00
Filed: 2001-03-30
Abstract: PROBLEM TO BE SOLVED: To obtain a flowability enhancer enabling to afford flowability to a resin or a resin composition such as an engineering plastic of poor flowability without affecting their physical properties. SOLUTION: This aliphatic copolyester-based flowability enhancer having weight average molecular weight of >=40,000 has a structure in which a low molecular weight aliphatic copolyester (D) having weight average molecular weight of >=5,000 and composed of a repeating unit (P) expressed by -CO-R<1> - COO-R<2> -Oand a repeating unit (Q) expressed by -CO-R<3> -O- are linked by 0.1 to 5 pts.wt. of a bifunctional linker (E) based on 100 pts.wt. of (D). MFR of a resin or a resin composition (H) having 1.0 MFR is enhanced by 30% by blending 10 to 50 pts.wt. of the aliphatic coplyester-based flowability enhancer with 100 pts.wt. of (H).
Patent JP-2002305810-A (JP)
Title: Connection changer
Inventor: SHIN HIROKAZU
IPC: H02B1/20
Filed: 2001-03-30
Abstract: PROBLEM TO BE SOLVED: To reduce the transverse size of a circuit breaker. SOLUTION: A connection changer 20 is composed of a terminal block 200, terminal boards 201, 202, and a cover 203. The terminal block 200 is composed by forming a stair portion having two stair surfaces 200a, 200b whose distances from fitting surfaces differ, respectively, and forming a holding groove 200c, 200d from the side of each opening in a transverse direction individually joining it to each stair surface. The terminal boards 201, 202, are composed by consecutively integrally forming terminal areas 201a, 201a fitted with screws S20, intermediate parts 201b, 202b being connected to these areas and put in the holding grooves 200c, 200d, and insertion blades 201c, 202c which are connected to these parts 201b, 202b, projected from the terminal block 200, and inserted into insertion inlets 11a, 11c of a primary feed switch 22.  The cover 203 is formed into an L-shaped cross section. Each stair surface of the terminal block 200 is formed on one longitudinal side, and each inserting blade 201c, 202c protrudes from the other longitudinal side.
Patent JP-2002302347-A (JP)
Title: Group control device for elevator
Inventor: KINUGASA MITSUYO
IPC: B66B1/18
Filed: 2001-04-04
Abstract: PROBLEM TO BE SOLVED: To give the least possible degradation of service to elevator users by performing preferential allotment control corresponding to a change in traffic demand of an elevator. SOLUTION: An operation condition is classified into three levels, 'no-jam', 'normal' and 'jam', and judgement values are set corresponding to the levels. Learning that a B-number car 1-B, e.g. exists as a simultaneous response car in accordance with the detection of simultaneous response detecting mean 7, allotment control means 5 inputs an evaluation value for the B-number car 1-B from allotment evaluation computing means 6 and compares it with the judgement value corresponding to the 'normal' condition as a discrimination result of operation condition detecting means 8.
Patent JP-2002301116-A (JP)
Title: Body structure for attending type electrically powered wheelchair
Inventor: SUGANO NOBUYUKI
IPC: A61G5/04
Filed: 2001-04-04
Abstract: PROBLEM TO BE SOLVED: To provide a body structure for attending type electrically powered wheelchairs which achieves higher operability in the wheelie operation or the like by eliminating uneasiness of riding persons associated with the rotation of the wheelchair. SOLUTION: In the attending type electrically powered wheelchair 1, a pair of left and right drive wheels 6 with a large diameter are arranged at the rear part of a body frame 2, a pair of guide wheels 7 with a small diameter are arranged at the front part of the body frame 2 and the drive wheels 6 are driven by electric motors to make the wheelchair run.  A vehicle posture regulation member 17 is provided at the rear end of the body frame 2 to regulate the angle at which the wheelchair turns backward keeping the guide wheels 7 lifting centering around the drive wheels 6 and the vehicle posture regulation member 17 is so arranged as to be turnable between the operation position at which the wheelchair touches the ground when the angle of turning reaches the specified value and the housing position at which it does not touch the ground in the range of the angle exceeding the specified value.
Patent JP-2002305205-A (JP)
Title: Semiconductor device and its manufacturing method
Inventor: ATSUMI KENJI
IPC: H01L21/331
Filed: 2001-04-05
Abstract: PROBLEM TO BE SOLVED: To suppress the misfit transposition caused by the stress accompanying the difference of thermal expansion coefficient between a base layer and a foundation, in the case of using the epitaxial mixed crystal layer of silicon germanium for the base layer of a bipolar transistor. SOLUTION: An n+ collector region 2, an n- epitaxial layer 3, an element isolating oxide silicon film 4, a silicon oxide film 5, etc., are formed on a p-type silicon substrate 1, and then a silicon nitride film 51 through low-pressure CVD technique to serve as a stress relaxing layer is made. Subsequently, the silicon nitride film 51 is opened, with a CVD oxide silicon film as a mask, and further the silicon oxide film 5 is opened, using dilute fluoric acid aqueous solution; and at the same time, the removal of the CVD oxide silicon film used as a mask of the silicon nitride film 51 is performed. Then, an epitaxial mixed crystal layer of SiGe is formed by the same method as a conventional example, and further the electrodes of a base, an emitter, and a collector are formed.
Patent JP-2002304713-A (JP)
Title: Integrated circuit device for magnetic recorder
Inventor: HOKUTO SHINGO
IPC: G11B5/455
Filed: 2001-04-06
Abstract: PROBLEM TO BE SOLVED: To provide an integrated circuit device for a magnetic recorder arranged so as to accurately measure the characteristics of a magnetic head even though the midpoint voltage of the magnetic head is deviated from a reference. SOLUTION: A measuring part of a magnetic head performance for deciding whether the magnetic head is normal or not, is constituted of a 1st V/I conversion circuit 2-1 for converting the voltage of one end (+) of the magnetic head 100 to current, a 2nd V/I conversion circuit 2-2 for converting the voltage of another end (-) of the magnetic head 100 to current, and an I/V conversion circuit 3 for converting the difference between two currents obtained by the V/I conversion circuits 2-1 and 2-2 to voltage.
Patent JP-2002309788-A (JP)
Title: Sanitary equipment room
Inventor: HIRABAYASHI YUICHI
IPC: E04H1/12
Filed: 2001-04-13
Abstract: PROBLEM TO BE SOLVED: To provide a sanitary equipment room with the structure that a wall panel and a connecting member can be securely engaged with each other even if the wall panel is warped large. SOLUTION: This sanitary equipment room is formed by connecting adjacent wall panels to each other in a back side thereof with the connecting member 21. An equipment room side surface of the connecting member is formed with several lock holes 26 or projections 23 over at least two vertical lines. A back surface of the adjacent wall panel at a right and a left vertical side thereof is formed with projections 23 or the lock holes 26 to be engaged with the lock holes or the projections provided in the connecting member. The lower stage lock hole 26A is provided with a temporary engagement part 26c to be temporarily engaged with the projection 23 when relatively moving the connecting member 21 upward in the condition that the wall panel and the connecting member are arranged adjacent to each other and the projection 23 is inserted into the lock hole 26A.
Patent JP-2002309921-A (JP)
Title: Exhaust emission purifier and its manufacturing method
Inventor: SAITO MAKOTO
IPC: B01D46/00
Filed: 2001-04-16
Abstract: PROBLEM TO BE SOLVED: To efficiently collect a particulate matter PM included in exhaust gas and to improve a degree of contact with a catalyst for early recovery. SOLUTION: A part narrowing a pore diameter in a wall 21 surface layer facing the gas inflow side of a diesel particulate filter DPF with a catalyst is previously removed, and a mean aperture diameter of a pore 210 is 30 μm or more. Because the aperture diameter of the pore 210 is large, the particulate matter easily enters the inside of the pore 210 from the gas inflow side. A part narrowing the pore diameter in the wall 21 surface layer facing the gas outflow side of the DPF is not removed, and a mean aperture diameter of the pore 21 is less than 30 μm. Because the aperture diameter of the pore 210 is small, the particulate matter is not discharged to the gas outflow side from the inside of the pore 210.  In this way, the DPF can efficiently collect the particulate matter included in the exhaust gas, while the degree of contact with the catalyst is improved and a catalytic reaction is promoted, and consequently, early recovery can be realized.
Patent JP-2002311265-A (JP)
Title: Wavelength multiplexing/branching filter
Inventor: YAGYU EIJI
IPC: G02B6/32
Filed: 2001-04-16
Abstract: PROBLEM TO BE SOLVED: To provide a wavelength multiplexing/branching filter, by which the signal waves different in wavelength can be multiplexed/branched in more simplified structure. SOLUTION: The wavelength multiplexing/branching filter, which performs the conversion between a plurality of signals waves different in wavelength and a multiple signal wave obtained by multiplexing signal waves, is provided with a lower clad layer, a waveguide grating layer and an upper clad layer, and is designed to transmit the signal wave or multiple signal wave made incident on the waveguide grating layer through the waveguide grating layer. The incident angle of the signal wave or multiple signal wave made incident on the waveguide grating layer is inclined so that the signal waves different in wavelength transmitted through the waveguide grating layer can have group velocity dispersion.
Patent JP-2002306546-A (JP)
Title: Motor-driven vehicle
Inventor: ICHINOSE HIROSHI
IPC: A61G5/04
Filed: 2001-04-16
Abstract: PROBLEM TO BE SOLVED: To provide a motor-driven vehicle, which can be stably traveled over a step or ladder and can perform compact turns. SOLUTION: A traveling unit 7 is configured by arranging a driving wheel unit 32 composed of an arm 12, sprockets 21, 22 and 23 pivotally supported on the arm 12 and a pair of front and rear wheels 10 and 11 on each of left and right sides of a driving case 6 and the traveling unit 7 is located on each of front and rear sides of a vehicle stand 2. In such a motor-driven vehicle 1, the torque ratios of operation upon the sprockets 21, 22 and 23 are made almost equal and the driving wheel units 32 can be individually driven.
Patent JP-2002317980-A (JP)
Title: Method and apparatus for generating clean humid air
Inventor: SUDA SEIJIRO
IPC: F24F6/00
Filed: 2001-04-16
Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for generating clean humid air which contains no impurities. SOLUTION: The method for generating the clean humid air comprises the steps of generating hydrogen gas by contacting an alkali aqueous solution containing a metal hydrogen complex compound with a hydrogen generating catalyst, then mixing the hydrogen gas with an excess amount of an oxygen- containing gas such as air, and burning the mixture at a low temperature in the presence of an oxidation catalyst to generate the air containing a moisture. The apparatus for generating the clean humid air comprises a hydrogen generator having a storage container of the alkali aqueous solution containing the metal hydrogen complex compound and a hydrogen generating catalyst- containing box coupled to the container via a duct, an air intake port, and a wet air exhaust port.  A low temperature burning unit having a hydrogen gas dispersing unit such as a gas dispersing plate or a jet nozzle tube, an oxidation catalyst carrying plate and a heating plate is coupled in series. A passage to introduce the hydrogen gas generated from the generator to the hydrogen gas dispersing unit is also provided.
Patent JP-2002314446-A (JP)
Title: Digital broadcast receiver
Inventor: SATO KAZUHIKO
IPC: H04J3/00
Filed: 2001-04-17
Abstract: PROBLEM TO BE SOLVED: To provide a digital broadcast receiver for receiving a digital broadcast program transmitted while a plurality of services are multiplexed thereon, which solves a problem of complicated processing of a data processing unit when the receiver outputs only desired data from all the decoded data. SOLUTION: The digital broadcast receiver is provided with a means that extracts only desired data and a means that converts the desired data into data of a prescribed format so as to facilitate the processing of the connected data processing unit.
Patent JP-2002318655-A (JP)
Title: Telephone set with character input function and character input program
Inventor: NAGAOKA ISAO
IPC: H03M11/14
Filed: 2001-04-18
Abstract: PROBLEM TO BE SOLVED: To provide a telephone for allowing a user to quickly input target words or texts while viewing a display with the minimum number of depression even in the case of portable information terminal equipment such as a portable telephone set or a PDA in which the number of operation buttons is limited and electrical appliances in which the input of characters or digits is necessary. SOLUTION: A telephone set with a character inputting function for selecting characters according to the input of buttons is provided with a display device for displaying the relative position relation of 15 buttons arranged in a matrix constituted of five lines and three columns with a picture.
Patent JP-2002310783-A (JP)
Title: Bolometric infrared sensor array
Inventor: KANEDA OSAMU
IPC: G01J1/02
Filed: 2001-04-19
Abstract: PROBLEM TO BE SOLVED: To provide a bolometric infrared sensor array which can solve the problem that a bolometric array sensor requires a temperature controller, such as the Peltier temperature controller, etc., for constantly maintaining the temperature of a substrate, because the output level of the sensor is deviated and the sensor is not able to detect an object to be detected when the temperature of the substrate is not a prescribed value. SOLUTION: When a pixel is not selected, the resistance value of he pixel resistor in the pixel is maintained within a fixed range by supplying electric power to the pixel resistor in accordance with the temperature of the substrate. Alternatively, when electric power is supplied to the pixel resistor in the pixel at the time of selecting the pixel, the resistance value of he resistor is maintained within the fixed range by supplying electric power in accordance with the temperature of the substrate.
Patent JP-2002318393-A (JP)
Title: Liquid crystal display device and picture display application device
Inventor: YOSHIDA MASANORI
IPC: G02F1/1362
Filed: 2001-04-20
Abstract: PROBLEM TO BE SOLVED: To prevent counter defective short circuit caused by partial exfoliation of a flattening resin film or a color filter film in repairing a display defect by laser irradiation. SOLUTION: The liquid crystal display device is provided with the flattening resin film 13 covering scanning lines, signal lines and switching elements 4 and formed on an almost full surface of one substrate and pixel electrodes 2 formed on a part of the flattening resin film 13 surrounded by the scanning lines and the signal lines intersecting with each other and electrically connected to the switching elements 4 and has a plurality of through hole parts 12, of which the positions are in the vicinity of the switching elements 4, formed on the flattening resin film 13. Consequently the through hole part 12 is placed on the part of the flattening resin film 13 corresponding to the part where laser rescue is conducted.  When the through hole part 12 is subjected to the laser irradiation to rescue a defective luminescent spot in panel displaying, shock of the laser irradiation is not directly imparted to the flattening resin film 13 and consequently no counter defective short circuit is generated.
Patent JP-2002319726-A (JP)
Title: Optical amplifier
Inventor: HOTTA MASAKATSU
IPC: H04B10/2507
Filed: 2001-04-20
Abstract: PROBLEM TO BE SOLVED: To efficiently amplify a C band and an L band. SOLUTION: A C-band signal light SC and an L-band signal light SL are input to an input terminal 10. An EDF 16 is excited strongly by an excitation light 20a from an LD 20, the signal light SC is amplified, a C-band ASE light is generated, and the signal light SL is slightly amplified. An optical circulator 18 outputs the light from the EDF 16 to the fiber grating 22 of 90% C-band reflection from a port B. The reflected light of the grating 22 is incident to fiber grating 32 of 100% C-band reflection via the optical circulator 18, an optical fiber 36 and an optical circulator 34, is reflected here, and is arrived at an output terminal 39 via the ports B, C of the circulator 34. An EDF 26 amplifies the signal light SL by the C-band light passed through the grating 22 and an excitation light 38a.  The amplified signal light SL reaches an output terminal 39 via a WDM optical coupler 38, an optical isolator 30, the grating 32 and the circulator 34.
Patent JP-2002317237-A (JP)
Title: Composite roll for rolling made by centrifugal casting
Inventor: KOIE TAKAYUKI
IPC: B21B27/00
Filed: 2001-04-23
Abstract: PROBLEM TO BE SOLVED: To provide a composite roll for rolling made by centrifugal casting which is provided with high wear resistance and surface roughening resistance required for the external layer thereof without checking them, and has remarkably improved boundary strength between the external layer and internal layer. SOLUTION: The composite roll for rolling made by centrifugal casting is obtained by forming the internal layer consisting of a ductile cast iron material having chemical components containing, by mass, 3.0 to 3.6% C, 2.5 to 3.3% Si, 0.3 to 0.8% Mn, 0.1 to 0.5% Ni, <=1.0% Cr, <=1.0% Mo, <=1.0% V, <=1.0% Nb, <=0.5% W, 0.03 to 0.08% Mg, <=0.1% P, <=0.05% S and 0.001 to 0.05% Bi, and the balance Fe with inevitable impurities on the inside of the external layer consisting of a high speed steel based material.
Patent JP-2002321848-A (JP)
Title: Sheet loading device and image forming device
Inventor: KAWAMURA KOJI
IPC: G03G15/00
Filed: 2001-04-26
Abstract: PROBLEM TO BE SOLVED: To provide a sheet loading device of a simple structure with superior assemblability and capable of detecting size and remaining amount of sheets. SOLUTION: A paper feeding cassette 1 has a size detecting cam 12 detecting size of the sheet and a remaining amount detecting lever 16 detecting remaining amount of the sheets. The size-detecting cam 12 and the remaining amount detecting lever 16 are closely constructed on the paper-feeding cassette 1 loading various sheets and the sheet is detected with a triple switch 17.
Patent JP-2002328361-A (JP)
Title: Liquid crystal optical element and optical system equipped with the same
Inventor: ONO KATSUYA
IPC: G02F1/1333
Filed: 2001-04-27
Abstract: PROBLEM TO BE SOLVED: To reduce deterioration of image quality caused by a slow response time between the center of a liquid crystal and the periphery thereof or a total response time, and also to reduce a deterioration of image quality due to characteristics or the like of the members except the liquid crystal. SOLUTION: The liquid crystal is interposed between at least two optical substrates, and at least one of the faces in contact with the liquid crystal, of the optical substrate is made to be an aspherical face which is reduced in curvature as it is displaced away from the optical axis.
Patent JP-2002325874-A (JP)
Title: Net attaching device
Inventor: MATSUI TAKAYOSHI
IPC: A63B63/00
Filed: 2001-05-07
Abstract: PROBLEM TO BE SOLVED: To provide a net attaching device which can easily and securely attach a net to a support frame. SOLUTION: On the net attaching face of a support frame, an engaging groove 6 is formed and a stick member 31 mounted with a plurality of engaging members 33 to be engaged with and fixed to the engaging part. The rim edge of a net 2 is set in between the stick member 31 and the net attaching face of the support member 4 and the engaging member 31 is engaged with the engaging groove 6 to fix. Thus the stick member 31 presses the rim edge of the net 2 against the support frame to fix.